In February I spent a fascinating day with the production team for Dark Son, the BBC documentary about the 1960s’ Nude Murderer.

This, of course, is the west London serial killer case that remains unsolved today. I wrote about it in The Hunt for 60s’ Ripper (Mirror Books), detailing the huge manhunt for the killer of six women.

I’ve now been invited back to do more filming, this time in Wales rather than London. There have been very interesting developments in the case, thanks to brilliant research by the production team.

West London base of the killer

I won’t reveal what these are because that would be a disservice to what looks like being a landmark documentary in this case. A chain-reaction of new information has been sparked, however, by one bit of research leading to new connections being made.

The geographic profile featured in my book has been an important piece of the jigsaw. This was the work of leading expert Kim Rossmo. It pinpoints two areas of west London where the calculating killer was probably based.

Kim has been interviewed for the film. He should offer compelling insights into his work and the problems detectives have in attempting to catch serial predators.

Rumours and legends have grown around this appalling series of crimes. From what I hear, Dark Son – being made by Monster Films – should shed valuable light on the mystery.